Horizontal coke-oven.



C. STILL.

HORIZONTAL CKE OVEN. PyLIoATIoN FILED JAN. 23, i912.

Patented May-26, 19H.

aeesgsse.-

T 0 all whom 'it may concern.'

Beit l'tnownthat I, @aan STiLL, a subject of the German' Emperor,residing afi Rienk-v linghausen', Westphalia, in the German E1npire,have invent-ed certain new' and useful Improvements in HorizontalvCelrevens, of which the following' is aI specification.

This invention relates to horizontal coke ovens lia vings. verticalheating: iues to which the heating gas is supplied through channelsormed within the underlying `refractory masonry, and it is the object ofthe invention to providemeans whereby the disadvantages and disturbancescommonly connected .with such a system vfor supplying gas to the heatingfines are avoided and a continuous and uniform distribution of the gasto all part-s where combustion occurs is guaranteed.

It is common practice to conduct the heating gases, to theyerticalheating flues of such horizontal coke ovens throughnozzles arranged oneat the foot of each heating fiue 'and having orifices of small crosssection; this cross section has to bel carefully'detei-mined in orderthat the distribution oit the gas and consequently'the heating of allthe ues may be uniform. Owing to the high temperature prevailing in the`whole masonry atthe bottom of the heating iiues the gas passing throughthe nozzle becomes heated to such a temperature that it is ,partiallydecomposed and carbon is liable to be deposited within the nozzle, thusclicking it and preventing the passage ofthe correct amount of gas forthe .proper heating of the iiue. Another cause of such obstructioi' isthe peeling oii of particles of the material of which the heating fiueis constructed, which particles either cover `or enter the orifices ofthe nozzles and choke them. This -difiiculty arises from the narrowcross section of the orifice which, however, must beLv maintained .forthe reason aforesaid.

The present inventionminimizes lthe liability of disturbances due to thesmall cross section of the orifices of the nozzles by' pro-` viding eachheating tlue with two nozzles, one vertically above the other, the lowerbeing the nozzle for the distribution of the gas and the upper acombustion nozzle adapted to protect thel'ower nozzle. The lowerdistributing nozzle has the necessary narrow cross section aforesaid,but it is situated at such a. distance below the'upper coni bustionnozzle that its temperature is coini en emerse ear C RL STILL, 0FRCKL'INGHAUSEN, GERMANY.,

Speoication of Letters Patent'.y

into practical effect, l. In a horizontal coke oven, the combina- 90carica.

rasanten. naal. efe, i914..

Application ledflanuery 23, 191m Serie-limi: engem.'-

giaratively low and ,decomposition off' thev h eaiaug'- gases passingthrough itv is not hable to occur. The' vupper nozzle' is situated?att-lievbcttoin ofthe heating iue but nas-an orifice of greater crosssectional area than that of; tli'ef'orifiee of? the lower' nozzleso thutthe correct' volume-of heating gases .can pass even should the nozzlebecome par- ;tially obstructed-y :tromR either. ofthe"l causesaforesaid.

pT-he lower distributing nozzles a have passages of the correct crosslsection for def termlning the proper distribution of the heating gasesin the heating fines, while the upper nozzles have passages of largercross sectional area,and are situated one at the bottom of each heatingflue which is the customary position. As will be seen the lower nozzleis at a considerable distance below the upper one. The arrow at thebottom of Fig. 2 indicates the passage of the gas from the distributingchannel through the nozzle a. They arrows shown in the upl per part of Fig. 2 indicate the'passagepf g5 air for burningthe heating gas in theflue.

Having thus described mfvinvention and.` the best means I know ofcarrying the same claim ztion comprising vertical' heating lues,channels formed completely within and by the. l

underlying masonry and adaptedv to supply heating gas to the said tlues,a gas nozzle of fixed orifice at the lower/part of each fiue, I

'passages for admission of air for combustion 'into each flue above.this vrnozzle, a second gas nozzle also of fixeld orifice below thefirst gas nozzle, the orifice of .the said second gas nozzle being ofsmaller cross section 1o( than the orifice of the first named gas.nozzle.

2.' In a horizontal coke oven, the combination comprising 'verticalheating flues, chan nels formed completely within and by the 10:

underlying masonry and adapted to supply heating gas to the said flues,a gas nozzle of fixed orifice at the lower part of each flue, i'assagesfor admission of air for combustion into each flue above this nozzle;asecond 11R gas nozzle also of xedorifcebelowthe first gas nozzle atsuch a distance therefrom that Fig 2 '1o is an enlarged .portion of thesaid sectio it is not strongly heated, the islecondfgas nozzle having anorifice of cross section adapted to pass the volume of gas required forthe flue, and the first named gasnozzle having an orifice ofcros'ssection' greater than that of the "Orifice'of the Said second gasnozzle; 3'. 1n `a horizontal coke oven, the combina,- tion comprising vtical heating flues channels formed 'comple ely within and theunderlying masonry and adapted to supply .j heating gas tothe saidfines, a gas nozzle of fixed orifice a`t thelowerpart of each ue,

passages for admission of air forcombustion (situated 'in the oven Wallbetween adjacent lues, outlets branched from the said air passages fordelivering air for combustion rinto each fiue above the said nozzle, asecond gas nozzle also of fixed orifice below the lirst gas nozzle atsuch a distance therefrom that it is not strongly heated, the saidsecond gas nozzle having an orifice of cross section adapted to pass thevolume of gas required for the Hue, and the first named gas nozzlehaving an orifice of cross section greater than that of the orifice ofthe said second gas nozzle.

In testimony whereof I have affixed my signature in presence of twowitnesses.

CARL STILL. Witnesses:

Orro KUHN, GUSTAV LAMBERTZ.

